An interesting American project, originating from the battery-powered coilguns by Jason Murray. Several models of portable accelerators are presented and offered for sale on the website. The authors, in my opinion, are going somewhat too far with advertising, but their accelerators still deserve attention as very well-developed, including from the point of view of design and safety.

Megavolt's YouTube channel. The practical approach prevails without any special theoretical speculations and formulas, but the results are interesting. There are several samples of the assembled coilguns, including as much as a 21-stage accelerator, the fastest (124 m/s) in the RuNet to date (August 2021).

Series of multistage coilguns are presented on the site and conjugated Youtube-channel. Their main features are an ergonomic design and high rate of fire. The first is achieved by 3D-printing, and the latter - most likely by a direct drive from accumulators. It is interesting that disk-shaped projectiles are used.

Old site containg information on theory of coilguns. Construction of 3-stage coilgun is described. No refresh for a long time.

Another old and non-refreshed resource. A lot of real coilgun constructions with good velocity parameters.